A kid takes home his report card with some terrible grades A kid takes home a really bad report card and next day goes up to the teacher and says "I showed my dad my report card, he was really drunk slurring words but he told me while I'm in class I better learn what buccaneers are." So the teacher says "oh that's a term that they use to describe a pirate" boy replies "oh I see...so what does it mean to shut my buccin mouth?"